Patents by Inventor Duncan Christopher Spaulding

Duncan Christopher Spaulding has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods of aligning a cylindrical lens in a lens fixture and in an optical system
    Patent number: 11280978
    Abstract: The method of aligning a cylindrical lens in a lens assembly includes attaching the cylindrical lens to a lens fixture and interfacing the lens fixture to a support structure in which the cylindrical lens can be placed in a frontwards and backwards orientation. The method also includes capturing respective first and second line images of respective first and second focus lines as formed by the cylindrical lens in the forwards and backwards orientations. The method further includes establishing a relative orientation of the first and second line images and using the established relative orientation to determine an amount of angular misalignment of the cylindrical lens relative to a reference direction provided by the support structure. The method can include rotating the cylindrical lens relative to the lens fixture to reduce the amount of angular misalignment to be within an angular alignment tolerance.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: March 22, 2022
    Assignee: Corning Incorporated
    Inventors: Michael Morgan Dunn, Kevin John Magierski, Brian Monroe McMaster, Paul Francis Michaloski, Duncan Christopher Spaulding
  • Method of assembling optical systems and minimizing retardance distortions in optical assemblies
    Patent number: 10732336
    Abstract: According to some embodiments a method of assembling an optical system comprises steps of: measuring retardance profiles of a plurality of optical elements, relatively positioning the optical elements in relative orientations that enhance complementarity between the retardance profiles of the optical elements, and securing the combinations of relatively oriented optical elements together, to control or minimize the combined retardance of the stacked optical elements.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 4, 2020
    Assignee: Corning Incorporated
    Inventors: Paul Gerard Dewa, Robert Dennis Grejda, Stephen Karl Mack, Robert Louis Michaels, Paul Francis Michaloski, Duncan Christopher Spaulding
  • METHODS OF ALIGNING A CYLINDRICAL LENS IN A LENS FIXTURE AND IN AN OPTICAL SYSTEM
    Publication number: 20200103612
    Abstract: The method of aligning a cylindrical lens in a lens assembly includes attaching the cylindrical lens to a lens fixture and interfacing the lens fixture to a support structure in which the cylindrical lens can be placed in a frontwards and backwards orientation. The method also includes capturing respective first and second line images of respective first and second focus lines as formed by the cylindrical lens in the forwards and backwards orientations. The method further includes establishing a relative orientation of the first and second line images and using the established relative orientation to determine an amount of angular misalignment of the cylindrical lens relative to a reference direction provided by the support structure. The method can include rotating the cylindrical lens relative to the lens fixture to reduce the amount of angular misalignment to be within an angular alignment tolerance.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 2, 2020
    Inventors: Michael Morgan Dunn, Kevin John Magierski, Brian Monroe McMaster, Paul Francis Michaloski, Duncan Christopher Spaulding